Maths Challenge Question Histograms Watch

lewis.h
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#1
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#1
Hi guys, can someone help me with this question. I have been sitting here for half an hour and the mark scheme makes no sense :

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BRAAAD
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I worked out an answer to be 27/13, or roughly 2.1, can you clarify that's right before I try and explain anything?
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Muttley79
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(Original post by BRAAAD)
I worked out an answer to be 27/13, or roughly 2.1, can you clarify that's right before I try and explain anything?
DO NOT post any method - just give a hint - anything else is against the rules.
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BRAAAD
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(Original post by Muttley79)
DO NOT post any method - just give a hint - anything else is against the rules.
Jheez, wasnt going to
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Muttley79
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(Original post by BRAAAD)
Jheez, wasnt going to
You said you were 'going to explain' - that sounds like a method to me ..
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BRAAAD
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(Original post by Muttley79)
You said you were 'going to explain' - that sounds like a method to me ..
I'll just say now, the frequency x class width x a constant = area,
that's all you need,
I dont want to hang around here. Good luck.
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